1 /* $FreeBSD: head/sys/dev/usb/usb_dynamic.c 250207 2013-05-03 11:10:04Z hselasky $ */
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/stdint.h>
28 #include <sys/param.h>
29 #include <sys/queue.h>
30 #include <sys/types.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
34 #include <sys/module.h>
36 #include <sys/mutex.h>
37 #include <sys/condvar.h>
38 #include <sys/sysctl.h>
39 #include <sys/unistd.h>
40 #include <sys/callout.h>
41 #include <sys/malloc.h>
44 #include <bus/u4b/usb.h>
45 #include <bus/u4b/usbdi.h>
47 #include <bus/u4b/usb_core.h>
48 #include <bus/u4b/usb_process.h>
49 #include <bus/u4b/usb_device.h>
50 #include <bus/u4b/usb_dynamic.h>
51 #include <bus/u4b/usb_request.h>
53 /* function prototypes */
54 static usb_handle_req_t usb_temp_get_desc_w;
55 static usb_temp_setup_by_index_t usb_temp_setup_by_index_w;
56 static usb_temp_unsetup_t usb_temp_unsetup_w;
57 static usb_test_quirk_t usb_test_quirk_w;
58 static usb_quirk_ioctl_t usb_quirk_ioctl_w;
60 /* global variables */
61 usb_handle_req_t *usb_temp_get_desc_p = &usb_temp_get_desc_w;
62 usb_temp_setup_by_index_t *usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
63 usb_temp_unsetup_t *usb_temp_unsetup_p = &usb_temp_unsetup_w;
64 usb_test_quirk_t *usb_test_quirk_p = &usb_test_quirk_w;
65 usb_quirk_ioctl_t *usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
66 devclass_t usb_devclass_ptr = NULL;
69 usb_temp_setup_by_index_w(struct usb_device *udev, uint16_t index)
71 return (USB_ERR_INVAL);
75 usb_test_quirk_w(const struct usbd_lookup_info *info, uint16_t quirk)
77 return (0); /* no match */
81 usb_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td)
87 usb_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength)
90 return (USB_ERR_STALLED);
94 usb_temp_unsetup_w(struct usb_device *udev)
96 if(udev->usb_template_ptr) {
97 usbd_free_config_desc(udev, udev->usb_template_ptr);
98 udev->usb_template_ptr = NULL;
103 usb_quirk_unload(void *arg)
105 /* reset function pointers */
107 usb_test_quirk_p = &usb_test_quirk_w;
108 usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
110 /* wait for CPU to exit the loaded functions, if any */
112 /* XXX this is a tradeoff */
114 tsleep(usb_quirk_unload, 0, "WAIT", hz);
118 usb_temp_unload(void *arg)
120 /* reset function pointers */
122 usb_temp_get_desc_p = &usb_temp_get_desc_w;
123 usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
124 usb_temp_unsetup_p = &usb_temp_unsetup_w;
126 /* wait for CPU to exit the loaded functions, if any */
128 /* XXX this is a tradeoff */
130 tsleep(usb_quirk_unload, 0, "WAIT", hz);
134 usb_bus_unload(void *arg)
136 /* reset function pointers */
138 usb_devclass_ptr = NULL;
140 /* wait for CPU to exit the loaded functions, if any */
142 /* XXX this is a tradeoff */
144 tsleep(usb_quirk_unload, 0, "WAIT", hz);